package day2;

/**
 * @author oldliu
 * @since 1.0
 */
public class Fro {
    public static void main(String[] args) {
        int sum=0;
        for (int i=0;i<=1000;i++){
            if(i%7!=0){
                sum+=i;
            }
        }
        System.out.println("sum="+sum);
    }
}
